Sterile venturi is sucked outThe present invention relates to preambles according to claim 1 for the replacement plug-in unit or box of ophthalmology medical equipment andThe corresponding suction of the relevant device or system and preamble according to claim 12 of preamble according to claim 11Method out.
When performing the operation within the eye, such as in cataract operation, vitrectomy or operation for glaucoma, doctor so as toThe intraocular surgical instruments for completing operation is connected to medical equipment by hose system, and it is so-called especially to execute by the medical equipmentSuction irrigation, so as to especially remove during surgery from eyes generate particle.Here, big multi-purpose one or more insertions are intraocularHollow needle complete suction, the i.e. suction of particle and liquid.So-called flushing liquor is inputted with transfusion again simultaneously.At this point, eyePressure should be kept constant as far as possible to prevent the flat contracting of eyes or bulging.Document WO00/25710, WO02/056805,DE102012018982 or DE19852574 describes the example of this equipment and the example application of this equipment.In this eyeIn section's suction irrigation, two different ways are mainly used.First, by the suction of peristaltic pump, at this time according to its work sideFormula carries out the setting of delivered volume flow in its control device.Second, according to the suction of venturi principle, in its control deviceMiddle setting suction.Correspondingly, using the Ophthalmologic apparatus according to venturi principle or the equipment according to Creeping Principle.BothPrinciple all has specific characteristic or advantage and disadvantage, such as about the behavior and its elimination etc. aspirated when ripples are acted on, occluded.UsingWhich principle is for example depending on surgical hobby and/or specific operation, or merely depends on the type of available devices.For example, WO2010/129128 or DE102007031722 show a kind of equipment, worked according to Creeping Principle, and US2016/0089268 shows the use of venturi principle.
In venturi principle, (such as come from by Venturi nozzle (according to venturi principle) and by air streamPerform the operation indoor compressed air port) in the intracavitary generation negative pressure in hole.Vestibule is for example connected to by valve from eyes as neededThe suction system of stretching, therefore cause to be sucked out by the negative pressure.But ophthalmology venturi system has one according to prior artA little disadvantages.Such as acoustic damper needed for Venturi nozzle may be by the presumable pathogen contamination from eyes liquid, instituteEnvironment may be then evacuated to by stating germ, virus and/or bacterium.This possibly not only is present at such as liquid level and determines error and liquidWhen body overflows, it is also possible to because most slight fly upward and realize.Although it has been known that there is special, preposition and periodic replacementFiltration system, but they can not prevent all risk of infection.Sucking liquid only contacts the fact that interchangeable box also in this base mostlyThis is helpless, because Venturi nozzle, its acoustic damper etc. are a part of equipment, rather than a part of interchangeable box.
It is necessary if providing to have expired for accommodating the region of liquid in such box of venturi according to prior artOperation is interrupted to exclude the problem, this is further problem.
The further drawback of the prior art may be that may show in suction system in Venturi nozzle functional faultThe over-voltage of work is transmitted into intraocular and even results in the outside air not sterilized under worst case and be blown into intraocularly.
Therefore, the known solution of the prior art is worth improving for its form known.
The task of the present invention is a kind of method is provided, improves ophthalmology and be sucked out.That is, it should a kind of improved eye is providedMethod and device as used herein is sucked out in section.Disadvantages mentioned above should especially be eliminated.
Correspondingly, task of the invention is also to improve the setting of ophthalmology aspiration device, especially Ophthalmologic apparatus for being sucked outRegional area and/or affiliated replacement part.
Here, task is provided in particular in a kind of box for Ophthalmologic apparatus being correspondingly improved.Equally, one kind is accordingly providedOphthalmologic apparatus may be another part of task to use such box.
One more specific task is also to provide a solution herein, with known venturi system by permittedThe performance and characteristic of more surgeon's assessments, but avoid or at least reduce its disadvantage.
According to the present invention, these tasks pass through the feature of independent claims and/or the feature by dependent claimsTo complete or improve the solution.
The present invention relates to a kind of replacement plug-in units for ophthalmology medical equipment, are used for sucking liquid.The suction is especiallyCan within the scope of so-called suction irrigation in ophthalmic surgery, for example in cataract operation or vitrectomy intoRow.In the suction, it is discharged from eyes with or without the liquid of such as broken lens portion of solid particle.ThisThe suction of invention can mainly should especially be carried out according to venturi principle so-called in expert circles herein, i.e., according to by air pressureThe suction principle of negative pressure rather than according only to just as example with peristaltic pump obtain hydraulic volume conveying principle, that is, especiallyIn order to obtain suction properties similar or identical with classical venturi system herein.Therefore, art is also alternatively used belowLanguage " cleaning venturi replaces plug-in unit " is used for the replacement plug-in unit.
Replacement plug-in unit of the invention has herein for accommodating to the fluid zone of sucking liquid and typically without liquidNegative pressuren zone, negative pressuren zone can bear air pressure negative pressure.Here, the fluid zone is airtight using at least partly flexible diaphragm and the negative pressuren zoneIt separates.
Especially, negative pressuren zone especially forms cavity when replacing part and being loaded into medical equipment.It is equipped in the cavity at this timeGas, especially air or room air.Gas (at least partly) can be pumped out from the cavity by corresponding aspirating mechanism,To negative pressure occur relative to ambient room air.Therefore in normal operation, negative pressuren zone is typically free of liquid.
Diaphragm can for example be designed to flexible film herein, such as the combination shape of plastic foil or metal foil film or bothFormula.Diaphragm can be for example made of herein polyamide (PA) and/or polypropylene (PP), herein, can be with according to the difference of materialCorresponding film thickness is determined by calculating and/or testing to obtain required flexibility while stability.Such as film byPolyamide (PA) and/or polypropylene (PP) are constituted.The film at this time can with about 40-100 microns, especially with about 60-70 micronsThickness formed.In addition to the film being made of sole material, which can also be made of two kinds of materials, such as one layer is about 20 micronsThick PA layer is 50 microns thick of PP layer with one layer.
In one embodiment, which for example can extend at least approximate entire surface the side wall of fluid zoneOn, such as by channel-shaped or shelly-shaped hard mold, hard mold is in its open side by diaphragm seals.Here, the mold and diaphragm are formedAt least part of the cavity of variable volume as fluid zone.Fluid zone volume herein can by at least partly deformation of diaphragm comeChange, especially also changes to being approximately zero.
In another embodiment, which for example can also be only around thus movable hard such as plate-like pieceIt is formed.In other words, at this time the diaphragm be generally designed and be arranged as to cause one or more sides for surrounding fluid zones canActivity (at least one region).That is, the encirclement volume that flexible diaphragm is especially designed and arranged for changing fluid zone, especially phaseFor replacing the non-flexible basic configuration of part.Entire replacement part preferably is manufactured by one or more plastics at this time, such as so that canThe recycling use of energy becomes easy.
Alternatively, the embodiment with piston-cylinder mechanism also may be implemented, here, cylinder forms fluid zone, and it is movablePiston replaces diaphragm by air pressure actuation and is used to pressure transmitting.Another alternative is the work being flexibly connected via diaphragmPlug or rigid walls apply force to move by mechanical applied force or magnetism.But the power (will at least be filled without Special controlling technologySet) resist the principle of the invention that should keep venturi system characteristic as far as possible accordingly.
According to the present invention, such as replacement plug-in unit can be designed to have that slot or half-shell, i.e. especially one kind has at this timeThe hull shape slot of bottom surface and circular setting edge.The half-shell can be for example by plastics such as polypropylene (PP) or metal and/or heatThermoplastic elastic (TPE) is constituted.Especially suggest if polyethylene or polyacrylic moulding are for producing in batches.Such as half-shell is hardMatter component part can be made of polypropylene (PP), and soft component part is made of TPE, preferably with injection moulding process.Then, everyFilm can be connected to half-shell in a manner of hermetic closed.Diaphragm can for example be designed to flexible film herein, especially have soSmall film thickness, that is, obtain required flexibility (at least partially in position needed for volume change or at least approximate entireMembrane area range), but guarantee sufficiently high breaking strength simultaneously.The film can be designed in this way at this time, it is in its stationary postureUnder as far as possible coincide half-shell interior shape.This can also be carried out when replacing plug-in unit manufacture by previous forming or for example.ExampleSuch as, which can be covered with film and at edge by around locking, bonding, welding, ultrasonic bond, compression or clamping.Then, the film is for exampleIt can become respective shapes into half-shell mold by deep-draw, especially as follows, the moulding of deep-draw then corresponds to preferablyDiaphragm stationary posture.
Such mantle especially can be arranged so at this time, that is, the fluid zone is formed in inner cavity and mantle of the half-shellMedial surface between.Here, the fluid zone has according to the difference of its liquid level from being at least approximately zero to such as several milliliters to severalHundred milliliters of volume, such as 100 milliliters.Especially using additional pump installation, liquid volume can be designed to be less thanNot when additional pump installation, such as less than 500 milliliters, preferably substantially 100 milliliters.
Correspondingly, a part of negative pressuren zone is formed by the film lateral surface opposite with medial surface.Here, the edge of such as half-shellIt can be formed together the chamber around sealing as negative pressuren zone in the box-packed fashionable mating member in equipment, be connected to and be used forThe air aspirating mechanism of negative pressure is provided.Here, when replace plug-in unit be packed into when, it is particularly possible to carry out replacement plug-in unit and mating member itBetween clamping, form the volume being completely closed whereby.Here, for example can use the mating member in replacement part and/or equipmentOn respective seals the negative pressuren zone (in addition to aspirating mechanism) is formed with the bulk form being completely closed, it is especially hermetically sealedVolume.One embodiment of replacement part of the invention can for example be designed to multiple groups part moulding herein, and the film is set to hereinEnter or is optionally injected simultaneously.Correspondingly, the known composability of material used in the method is focused on herein.
Replacement plug-in unit according to the present invention can for example be designed for ophthalmology medical equipment in one embodimentReplaceable box.Fluid zone is designed to the suction chamber that can be connected to the suction port hydrostatic pressure of surgical operating instrument at this time.It shouldSuction chamber is designed for temporarily, at least especially directly receiving sucking liquid at this time, and as already described substantially with softProperty diaphragm and hard half-shell are formed.At this point, the diaphragm can by the negative pressuren zone from outside when box is placed into medical equipmentReceive negative pressure, so as to realize that negative pressure is transferred to fluid zone via diaphragm from negative pressuren zone, and the air being sucked out from negative pressuren zoneLiquid will not be touched.Here, especially being obtained under the corresponding design conditions of the material of diaphragm and parameter and especially film thicknessCharacteristic is sucked out, is equal to or is at least similar to the suction characteristic that system is sucked out in known venturi.Especially, diaphragm can at this timeTo be the diaphragm of large area, this is particularly likely to mean that diaphragm area occupies the major part for surrounding the surface of fluid zone.ExampleSuch as, diaphragm area can be not only in units percentage range, but for example compared to the whole surface of fluid zone at this timeMore than 16%, especially more than 25% or more than 35% or higher.Here, using the large area diaphragm being accordingly sized, especiallyCharacteristic extremely similar with known venturi system can be obtained.Optionally, in a special embodiment, diaphragm areaAlmost 100% can also be accounted for reaching, but herein preferably with the percentage less than 80%, thus at least part fluid zone tableFace is formed by hard half-shell.
Replacement plug-in unit of the invention can also be formed as optional add-on module in another embodiment, can be withIt is mounted on the base box for example with the ophthalmology of at least one peristaltic pump, port or valve.For example, optional add-on module andBase box mutually can securely couple (such as clamping, clamping, locking etc.) herein, to can establish fluid zone and base during installationThe hydraulic communication of the suction system of box.The installation can carry out for example in OP before being fitted into box, way be base box withAnd cleaning venturi replacement plug-in unit is removed and best inseparably group at the scene from its aseptic packaging as neededIt is fitted together.If the installation of add-on module is carried out via factory, pressure bonding with base box can also be alternatively carried outTightly, welding or shape are cooperatively connected, the inseparable company of occur, replacement box and cleaning venturi replacement plug-in unit of the inventionIt connects totally by aseptic packaging, such as in bubble.Furthermore the rupture portion that can for example destroy base box in assembling or strip of paper used for sealing are to mentionIt can have valve etc. for the connection or the base box that system is sucked out with it to open fluid passage until cleaning venturi more insertsThe connection of part.
In replacement plug-in unit of the invention, which can be generated by the air aspirating mechanism in medical equipment.Here, exampleIt can such as be pumped using electronic partial vacuum, perhaps can also either use Venturi nozzle or other air transport sectors,Negative pressure (partial vacuum, because not needing perfect vacuum mostly according to the present invention, but only that relative to atmosphere can be generated wherebyThe sufficiently large negative pressure of pressure).Vacuum pump is generated in a low voice and the advantages of maintenance few operation mostly and is avoided under stopping stateUndesirable overpressure problems.Especially, air aspirating mechanism can be designed to that the value of generated negative pressure is made to be at this timeAdjustable or controllable.For example substantially subatmospheric 0-850 of typical negative pressure numberical range in the sense of the present inventionMillibar.If there is vacuum ports in operating room, it optionally can also establish and be attached thereto instead of the air aspirating mechanism of equipment sideOr it can carry out converting by the pressure vacuum of Venturi nozzle.
Here, in a device, a part of vacuum plant or functionally associated component are as mating memberIt constitutes, by when replacing part and being packed into, sealing completely cuts off with the edge of replacement part especially half-shell and/or diaphragm in a manner of.Here, forming the negative pressuren zone between equipment and replacement part.Especially, at this time replacement part, particularly its edge on and/orSealing can be equipped on mating member in equipment, such as with elastomer, thermoplastic elastomer (TPE), silicone resin or other knownSeal form.It especially, or later can be in mating member and the replacement being packed into part when at this in replacement part load facilityBetween apply clamping force, its effect is put in the sealing to good use whereby.
Here, in replacement plug-in unit of the invention, the fluid zone can have pressure measurement mechanism or with such pressureThe connection of power measuring mechanism hydrostatic.This is designed to be informed in (absolute or preferably relative to ambient atmosphere in fluid zoneIt is opposite) negative pressure and/or over-voltage.Here, the pressure measurement mechanism can be other than completelying integrate in replacement plug-in unit also mostIt is only partially installed at thereon well.Thus, for example the replacement part can only have an ironed film of the survey being connected to fluid zone, determineThe correspondence measuring cell of the power and offset of surveying ironed film may be mounted to that in equipment.The measuring cell can be when replacing part loadingFunction connects are provided with the ironed film of survey, are especially mechanically connected.Similarly, another pressure can also be additionally or alternatively equipped withPower measuring mechanism is used for negative pressuren zone, another described pressure measurement mechanism can accordingly be associated with the equipment or replacement part.In this wayPressure measurement mechanism can especially be used at this time it is a variety of different monitoring and safety or adjustment function.
It, can liquid road between the fluid zone and suction tubing port in replacement plug-in unit of the invention in other words boxAt least one valve is equipped in diameter.The valve can be especially designed in this way, that is, the cross section that can change liquid path whereby is exactlySaying can for example be opened or closed, and can also optionally occupy multiple middle positions.For example, such valve can be designed to liquid roadThe cross-sectional area of diameter, the cross-sectional area are at least partially resiliently constituted along its perimeter.The elastic region can then pass through push rod, cunningBlock etc. by actuation, it is possible thereby to change, especially can idle cross-sectional area of the on-off in liquid path.
Replacement plug-in unit of the invention or box also can have pump installation, especially peristaltic pump or diaphragm pump.Utilize the pumpDevice, liquid can for example be sent to replaceable waste canister or collecting bag from fluid zone.The submitting can be followingIn the case of carry out, fluid zone is filled to defined maximum capacity, but also optionally during suction or can be sucked out intervalPeriod is carried out continuously, preferably automatic to carry out.It can be in its fluid connection for example by being arranged thus for this purpose, port is sucked outValve is separated with fluid zone, to avoid the suction system pressure at patient from changing in discharge.The pump installation at this time canSelection of land also separates in its fluid connection with fluid zone, such as by the other valves being arranged thus.But optionally, in engagementIn static peristaltic pump generally for example can also be used as the valve of closure, especially when to tie up pump completely transversal at least one pump rollerWhen face.The waste canister for example can be interchangeable bag or tank, can preferably install outside equipment and/or box.This for example may be usedTo pass through the connecting line being arranged thus or preferably carry out with not having to the hose with the bag that can be directly mounted on box.
Liquid path can be designed in this way in replacement plug-in unit of the invention, that is, be arranged thus particular by least oneValve come execute by the negative pressure for being transferred to fluid zone suction with by substitution pump installation especially peristaltic pump suction itBetween switching or both combination.Here, the pump installation as substitution can especially use following pump installations, whereby such as preceding instituteLiquid can also be passed out to waste canister with stating.Optionally, the pump installation of such substitution is used also as Back Up Option, such as such asFruit fluid zone is full of but needs to continue to be sucked out.In the failure of one of two suction systems, another preferably seamless pipe.It is anotherA option is that the cooperation with pump installation is sucked out by cleaning venturi of the invention, obtains delivered volume and increases and/or be sucked out pressurePower increases, this may be helpful in some cases during operation.Operator is in a corresponding embodimentCan whereby without delay and preferably infinitely wriggle be sucked out or venturi be sucked out or any combination of both modes itBetween switch.Also it can use corresponding control device and realize backflow functionality, this will be showed with simple venturi solutionIt obtains more expensive.Other than negative pressure value, the tune of suction properties can also be obtained by the design and/or change of negative pressuren zone volumeIt is whole, such as the such as behavior described in the next item down situations such as occluding.Such as the larger volume of negative pressuren zone causes the higher of suction behaviorElasticity.In embodiments of the present invention, especially in the embodiment that there is cleaning venturi and pump installation to be sucked out, thereforeHigh and especially adjustable at work or convertible suction dynamic can be obtained.The variation that dynamic behaviour is sucked out can rootIt is for example obtained also by the influence of negative pressure and especially its formation at any time according to the present invention.
Replacement plug-in unit of the invention and/or matched medical equipment also can have at least one for fluid zoneLiquid level sensor.It can especially be designed to pressure sensor, or the sensor for determining diaphragm position.Such as liquid level passesSensor can be designed to the switch operated when fluid zone is filled by diaphragm.When fluid zone is full of, can then carry out moreThe request or aforesaid liquid for changing the replacement plug-in unit are discharged by pump installation from fluid zone.Replace the complete of the fluid zone of plug-in unitThe discovery of emptying can be carried out by additional or identical liquid level sensor or this for example can be by as already described abovePressure measurement mechanism is found.
Replacement part of the invention or box of the invention can also have gas bubble detection.It especially can for example be based on optics workMake, it is different with the refraction of air to be based especially on liquid.Such as the view for being passed through fluid passage can be realized on box or replacement partWindow, the optical sensor of equipment side find the bubble perhaps occurred whereby.
The present invention also relates to a kind of equipment or system for being used for ocular surgical accordingly, have for especially as described hereinThe present invention replacement plug-in unit or box of the present invention at least one of which described in embodiment storing apparatus.
The equipment has air aspirating mechanism, especially vacuum pump or partial vacuum pump or rough vacuum pump or literary mound hereinIn nozzle with negative pressuren zone generate negative pressure.That is, especially a kind of replacement plug-in unit from the fluid zone airtight partition with replacement plug-in unitThe mechanism of air is pumped out or is sucked out in negative pressuren zone.Herein, it is particularly possible to be designed in this way the storing apparatus for replacing plug-in unit, holdIt receives and realizes the airtight close of the circle zone corresponding mating member to the storing apparatus of equipment for replacing plug-in unit in the case where replacing plug-in unitThe separable engagement of envelope is to form negative pressuren zone.It especially can be most throwings herein with the negative pressuren zone that replacement plug-in unit and equipment are constitutedOpen air aspirating mechanism itself not counting the volume area being completely closed, also include replace part diaphragm especially can be close from outsideOutside.Such as can be used as seal area at this time and form circular line or face, especially with sealing, it is preferably to use replacingThe elastomer or thermoplastic elastomer (TPE) on correspondence mating member in part and/or equipment.The negative pressuren zone for example can also also have exampleSuch as by liquid sensor or the leak sensor and/or pressure sensor of wetness sensor, can directly or indirectly send out wherebyThe functional fault or defect of the existing sealing, diaphragm etc..The connection of aspirating mechanism at this time especially can be in the upper lateral areas of negative pressuren zoneIt is carried out in domain, so that not having liquid in a leakage situation enters aspirating mechanism.Fluid zone to be sucked out system hydraulic communication thisWhen can preferably be carried out in the upper-side area for the replacement part being packed into, especially prevent presumable bubble formation whereby, orBubble can be simply vented by saying.It is preferably designed in this way the diaphragm herein, so that it especially tears open in replacement part in its resting positionIt opens and keeps being approximately zero by fluid zone volume after packing.It can especially come into operation after first be packed into, i.e. in replacement partThe so-called fill cycle of Shi Jingli or flushing cycle, suck the fluid zone for sucking liquid or preferably transfusion first at this time,Then liquid sending from replacement plug-in unit or box and/or hose system together with the air being perhaps located in suction system is carried outOut.Such as it can carry out being sent to collecting bag.This is especially advantageous, because hydraulically full suction system can be fatefullyIt makes a response to pressure change.
Above-mentioned replacement part comes into operation or so-called fill cycle or flushing cycle are not connected to patient generally at this timeGround executes, such as by the preliminary treatment of support staff.The transfusion of suction can for example be directed to infusion bag or defeated at this timeBottle is infused, especially from the infusion bag or infusion bottle that also be used to rinse during operation.It can carry out being suffered from during operationThe suction of the sucking liquid from eyes of person's pollution, should not be connected to next patient, surrounding air or equipment to guarantee to fillThe aseptic divided.
In an embodiment of the invention, flexible diaphragm can be preferably devised at this time it is substantially nonelastic, especiallyIt is designed in this way, i.e., is for example selected by the respective material of diaphragm in the predetermined work area of box in application of the inventionDo not occur membrane elastic deformation (or negligible small deformation at most only occur) with size setting.It is such substantially without bulletProperty diaphragm make due to can prevent the power needed for elastic diaphragm flexible deformation at this time that pressure distortion is sucked out, this for example can simplifyPressure adjustment is sucked out.
Similarly, the present invention also relates to a kind of suction methods for Ophthalmologic apparatus, work especially in accordance with based on negative pressureVenturi principle suction method.The method especially can within the scope of suction irrigation in cataract operation for example in crystalline substanceIt is executed in the emulsification of shape body or vitreous excision.Here, method of the invention is carried out using hermetically sealed fluid zone is provided, liquidBody area is at least partly formed by flexible diaphragm, and the fluid zone be located in the replacement plug-in unit for Ophthalmologic apparatus and can with it is logicalHydraulic communication is in the suction port of patient.
The suction is at least partly utilized herein by air from the lateral surface for being oppositely formed in diaphragm with fluid zoneNegative pressuren zone is extracted out or is pumped out to carry out.The air pressure negative pressure in the negative pressuren zone is carried out by diaphragm at this time to be transferred in the fluid zoneHydraulic negative pressure.Negative pressuren zone formation at this time can by will replace part be integrated to gas-tight seally the mating member of equipment side come intoRow, wherein the mating member is designed to have negative pressure generation mechanism or is attached thereto.
In other words, it is the suction method for ophthalmologic operation according to venturi principle, especially in Ophthalmologic apparatus.Herein, the fluid zone for being sucked out liquid and airtight point with the negative pressuren zone of ambient air are carried out according to the present inventionEvery.That is carrying out the hydraulic negative pressure for being transferred to suction system via the air pressure negative pressure of flexible diaphragm according to the present invention.Here,Especially the negative pressuren zone can be designed to there is defined minimum volume, so by its gas pressure cause relative to it is stiff notThe wriggling of change is sucked out may advantageous suction dynamic characteristic.
Suction method of the invention can use the pressure in the measurement fluid zone and/or in the negative pressuren zone to carry out, especiallyIt is to carry out negative pressure adjustment and/or valve control thus herein.Suction method of the invention can also be utilized by acting on liquidThe suction of the air pressure negative pressure in area and/or by the switching between the suction especially with the hydraulic volume change of peristaltic pump come intoRow.In suction method of the invention, liquid can also be carried out from fluid zone and be sent to waste canister particularly by peristaltic pump.ThisShi Youqi can carry out fluid zone in the preferably continuous emptying being sucked out in the intermittent phase.
Method and the present invention of the invention are described in detail hereinafter, to illustrate merely in conjunction with specific embodiment as shown schematicallyDevice, also introduce further advantage of the invention herein, specifically illustrate:
Fig. 1 is shown in block diagram form the first embodiment of an example of replacement plug-in unit of the invention；
Fig. 2 is shown in block diagram form the second embodiment of an example of replacement plug-in unit of the invention；
Fig. 3 shows the cross-sectional view of the first embodiment of the invention of replacement plug-in unit；
Fig. 4 shows the exploded view of the second embodiment of the invention of replacement plug-in unit；
Fig. 5 a shows the first view of the embodiment of the present invention of the replacement plug-in unit in multiple groups part injection molding embodiment form；
Figure 5b shows that the second views of the embodiment of the present invention of the replacement plug-in unit in multiple groups part injection molding embodiment form；
Fig. 6 a shows the first view of the first embodiment of the ophthalmology box of the invention with replacement plug-in unit of the invention；
Fig. 6 b shows the second view of the first embodiment of the ophthalmology box of the invention with replacement plug-in unit of the invention；
Fig. 7 shows the perspective view of the embodiment of the venturi diaphragm of replacement plug-in unit of the invention；
Fig. 8 a shows the cross-sectional view of the embodiment of the venturi slot of replacement plug-in unit of the invention；
Fig. 8 b and Fig. 8 c show the detail view of the embodiment of the venturi slot of the half-shell in present invention replacement plug-in unit；
Fig. 9 shows the view of the embodiment of the litter bag of the present invention for present invention replacement plug-in unit；
Figure 10 shows the present device with the box of the invention being packed into and the litter bag of the invention installedPartial view.
View in attached drawing is only used for showing and unless expressly stated, should be considered to be according to full size.It is identicalOr intimate feature has identical appended drawing reference always as long as practical, and perhaps comes area using the letter as indexPoint.Shown in schematic diagram respectively illustrate technology basic structure, can correspondingly be supplemented by technical staff general principle or byChange.
Fig. 1 shows the embodiment of suction method or corresponding replacement plug-in unit 1 of the invention as simplified block diagram.ThisWhen, subsequent description follows sucking liquid path, and herein, that there are also its is suitable for especially optional components in the sense of the present inventionSequence is variable.
Be sucked out port 12 in order to be connected to reply its suction eye surgery instrument such as ophthalmology handpiece and as moreThe interface of part 1 is inserted, the replaceable box 50 of Ophthalmologic apparatus can also be designed to.In example shown here,Optional air detectors 68a is located in the suction tubing in box, can determine presumable bubble in suction system whereby.BenefitWith optional valve 69, in this embodiment, transfusion can be admitted to suction system, for example, for when it comes into operation to box 50Fill liquid and/or for cutting down negative pressure in the occlusion of suction system.In addition, the system of suction has pressure sensor 40b, can borrowThis monitoring is especially in relative to the negative pressure of atmospheric pressure and the suction pressure of positive pressure form.The application needs valve 65, can lead to wherebyIt is disconnected or adjust the suction.Optional pressure sensor 40 shown here can be used to be sucked out negative pressure measurement, monitoring and/Or adjustment and/or fluid zone 10 level monitoring.When fluid zone 10 is filled or in functional fault, such as although negative pressuren zone 20Inside there is negative pressure, does not also cause negative pressure in suction system.
Also air detectors 68 can be optionally provided with.Then, sucking liquid enters the replacement part with flexible diaphragm 13Fluid zone 10.Flexible diaphragm 13 is at least partially disposed in the negative pressuren zone 20 with fluid zone airtight partition.For letting out for fluid zone 10Fault condition is leaked, negative pressuren zone 20 can be equipped with optional moisture detector 32.Negative pressuren zone 20 or fluid zone 10 can also be equipped withThere is the optional liquid level sensor 31 for fluid zone 10.Negative pressuren zone 20 bears negative pressure at this time, which is present in by dischargeAir in negative pressuren zone 20 is burdened with, such as passes through (part) vacuum pump 28 as shown of gas transportation machine structure 28 or other sameThe effects of device.Can be optionally provided at this time the measurement for the negative pressure as caused by gas transportation machine structure 28, monitoring and/orTherefore the pressure sensor 40c of adjustment, especially negative pressure can be adjustable and/or controllable.
In building, a part of can at least partly be placed in for obtaining components required for above-mentioned function should be filledEnter to replace in the equipment that part 1 uses so as to its operation.Especially, they can be the master with the actuator of box cooperation or sensorDynamic part.But according to replacement part purpose, it is all be disposed in box with the region of fluid connection in routine use (orOutside equipment).Therefore, box preferably only includes the passive part of these components as far as possible.According to the present invention, it can especially incite somebody to action hereinFor the operating parts of valve 65, for sensor 40, the measurement electronic device of 40b, 40c, 68,31,32, gas transportation machine structure 28 etc.It is arranged in the equipment for being incorporated with replacement part.Especially, at least part of negative pressuren zone 20 can also be by setting relative to box 50The mating member of standby side is constituted.For example, it is desirable to the unit being located in equipment is persisted draws in the graph, herein, only phaseWhen in a feasible embodiment without being necessarily considered limiting.
From compared with the prior art known ophthalmology venturi be sucked out solution above-mentioned further advantage in it is severalIt sets out, the present invention can also be referred to as " cleaning venturi ", because it provides the behavior of classical venturi system without upperDisadvantage is stated, particular without fouling problems.
Fig. 2 shows the embodiment of the suction of cleaning venturi or corresponding ophthalmology box 50 of the invention with simplified block diagram.The figure mainly shows above-mentioned functional extension, therefore the components remained unchanged are not discussed in detail again, but participates inAbove content.Being added in suction system especially in the embodiment of the present invention of the extension of ophthalmology box 50 has additional pump installation60 such as venturi pumps or diaphragm pump.In addition, showing additional valve 65b and optional bubble detection in the embodiment shownDevice 68b.By these components, other than suction as described in Figure 1, it can also realize from fluid zone 10 and liquid is sent to box50 outlet 70, in the mountable disposable litter bag 33 in the exit.Therefore, fluid zone 10 can be drained again, and box 50 existsWithout must equally be changed when fluid zone 10 is full of.Other this hair in greater detail of additional pump installation 60 are described belowBright application possibility.Be also shown optional second be sucked out port 12b and to this functionally required for valve 65c and 65d.Box50 this embodiment for example can also be constituted so, and there is the base box of additional pump installation 60 to be supplemented with root as neededPart is replaced according to cleaning venturi of the invention, it is for example indicated with region 36 herein.Base box can be specific as in same applicationIt is formed like that in the EP16197018 on the same day of people, is hereby cited and is included in.Fig. 3 has been shown in section view replacement of the inventionThe exemplary reduced view of part 1.Here it is shown that slot 11 or half-shell 11, are rigidly constituted, such as example above-mentioned by rigid materialDuroplasts or metal constitute.A possible example for being particularly used in the material of an embodiment is such as medical applicationPermitted polypropylene or other similar hard plastic materials meet to important performance is applied, in particular, for example have exampleIt is such as about the stretch modulus (1 mm/min) of the bending modulus and e.g., about 800 megapascal of 800 megapascal or more or more.Slot 11As can be preferably manufactured by injection molding or deep-draw.Half-shell 11 forms a part of fluid zone 10 herein, can pass through port 12It is connected to ophthalmology and system is sucked out.Diaphragm 13 is connected to half-shell 11 in a manner of gas-tight seal, which forms liquid on its medial surfaceThe another part in body area 10.Diaphragm 13 is specifically configured to paper tinsel film shape herein.Such as it by above-mentioned plastics and/or with metal foil film such asThis is formed, i.e., it is soft, especially because it has thin thickness or wall thickness corresponding and that be adapted to the material.It is usingPolyamide (PA) and/or preferred thickness is less than 1 millimeter when polypropylene (PP), such as 0.06 millimeters thick.In one embodiment,The film can also be made of multiple material, the PP layer for example including about 20 microns of thick PA layers He one 50 microns thick.ForThis, the advantages of these materials, can combine, such as the PP layers can have the advantage that about the solderability welded with half-shell 11, especiallyWhen half-shell is perhaps made of PP.Correspondingly, film 13 therefore can be on the medial surface of fluid zone 10 as half-shell 11Material or compatibility material are constituted.The lateral surface of diaphragm 13 can be for example made of the material having the further advantage that, the advantageSuch as it is related to breaking strength, barrier property, sealing performance, toughness etc., it is such as made of in the above example PA, but can also be withBy other materials, also such as aluminium is constituted.
Half-shell 11 and diaphragm 13 it is hermetic closed for example can by welding, ultrasonic bond, bonding, compression, clamp, pass through byDiaphragm 13 is packed into injection mould, the injection molding of multiple groups part etc. and carries out.In the example shown, this is carried out on locking shoulder 14.Negative pressuren zone 20On diaphragm 13 lateral surface opposite with fluid zone 10.It is at least partly opened wide when replacing part 1 and being not loaded into, thus in the presence of from institute(at least air pressure) for stating side to diaphragm 13 is connected.Especially, in one embodiment, the diaphragm 13 for replacing part 1 can be notIt opens wide and is close in loading state, but can also have in negative pressuren zone 20 in the another embodiment of replacement part 1There is the lid above diaphragm 13, cover hermetic closed negative pressuren zone 20, other than the air port 22 for negative pressure to be added.Especially moreIt changes on part 1 in the embodiment of uncovered, a part of negative pressuren zone 20 is made of the mating member 21 being located in equipment.Mating member 21 withThe negative pressure generation mechanism gas connection for also being located in equipment and (being not shown here).In simplification sketch shown here, mating member21 is plate-like as shown in the figure, in the case where replacing part 1 and being loaded into equipment by therebetween sealing 15 against replacement partSuction side.At most not counting negative pressure generation mechanism, forms especially hermetic closed volume as negative pressuren zone 20 whereby, can bearNegative pressure is to be sucked out.
In another embodiment of the present invention, mating member 21 is different from the case of can stating function in realization in this instituteThe plate shown, such as may be designed to the forms such as vestibule, half-shell.Sealing 15 can be associated with herein replacement part 1 or mating member 21 orBoth persons.Preferably, sealing 15 is associated with replacement part 1, because it is then replaced with replacement part 1, will not grind for a long timeDamage.
In another embodiment of the present invention, mating member 21 can also be constituted in the form of half-shell or vestibule, and replacing part 1 isIt is substantially flat or also shelly-shaped in half.That is, a practical embodiment for example also can have opposite construction, such as equipmentThere is inner cavity in 99, it is opposite by the fluid zone 10 of replacement part 1 formed by diaphragm 13 in soft bag shape when replacing plug-in unit 1 and being packed intoIt is gas-tight seal in room air.The bag for forming fluid zone 10 is sticked at this time in negative pressuren zone 20, and negative pressuren zone is with negative pressure cavity or suctionThe form of chamber is formed by the inner cavity in equipment 99.Here, the bag can also at least partly be connected to replacement part 1 or by replacement part structureAt.
The simplification decomposition view of the illustrated replacement part 1 of Fig. 4 and the mating member 21 of equipment side, merely illustrates function hereinThe important components of energy.Fixed slot 11 forms the support of replacement part 1, is handled upside down and is loaded into Ophthalmologic apparatus.Mantle13 especially in a manner of air and moisture seal with slot 11 around being fixedly connected.Sealing 15 is preferably also to replace a part of part 1And especially securely connection therewith.The sealing so arranges that it is surrounded in the suction side of film 13, especially true to surround, i.e., moreHermetically sealed negative pressuren zone can be formed by the sealing by changing part side.
It is fitted into for example erect shown in and be carried out in the gap down in equipment in orientation, i.e. in the view,In the gap, replacement part 1 followed by from the side, i.e. such as matching from right side and the equipment side in equipment in the viewIt is clamped together to part 21, so that its function is realized in sealing 15.In an alternate embodiments, replacement part 1 also can be with diaphragmSide lays flat loading relative to equipment, so that sealing 15 and the mating member 21 of equipment side completely cut off, in other words, in the view shown in,Therefore the equipment is arranged on right side, illustrate only the mating member 21 as part of appliance herein.Optionally, which is preferably alsoIt can have the liquid level sensor 31 for fluid zone and/or the moisture for leak detection shown here in negative pressuren zone to passSensor 32.
Fig. 5 a shows the possible Advantageous embodiments of replacement part 1 of the invention.Slot 11 is molded in duroplasts as shown in the figureThe form of part.Here, the internal cavities of slot 11 are at least partly formed together fluid zone 10 with diaphragm 13 at this time.Replacement part also hasHave for operating and/or being fixed on the fishplate bar 33 on base box.In this embodiment, cheese protuberance is centrally formed in slot 1118, better shape stability can be for example obtained by the protuberance and/or is obtained for diaphragm 13 not shown here in liquidAdvantageous deformational behavior when body area volume change.For the sake of very clear, show for cc lake end to opposite retractionMouthfuls 12 and for mating member 21 not shown here preferably by sealing element that elastomer or thermoplastic elastomer (TPE) are constituted withAnd the measurement film 41 for the pressure measurement mechanism in fluid zone.The example ratio of specific material for a possible embodimentThe in this way permitted thermoplastic elastomer (TPE) of medical application or elastomer plastic, or it is other with regard to it to described using important propertyFor energy it is similar especially for example with about 20 to 100 shore hardness A soft plastic material.
Fig. 5 b is never ipsilateral to show the first embodiment of replacement part 1 of the invention.Protuberance 18 correspondingly forms recessed hereinIt is curved, such as can be used to replace part 1 in equipment state in.Also there is guiding parting bead 19 to use above and below in this exampleIt is become easy in making replacement plug-in unit 1 be inserted into equipment.The part 41 that pressure measurement mechanism can be allowed close from outside is also shown.
Fig. 6 a shows another embodiment of replacement plug-in unit 1 of the invention, is designed to especially and with otherThe a part for the entire interchangeable ophthalmology box 50 that the base box 51 of function combines.In this embodiment, replacement plug-in unit 1 itself is formerFirst this ophthalmology box 50 has been designed to it, but its function is fewer than presently shown example.
The film 13 of half-shell 11 or venturi slot 11, sealing 15 and the separation as fluid zone 10 and negative pressuren zone 20 is such asIt can design described in upper and similarly or similarly herein.It is shown herein above the survey press mold 41 in fluid zone 10Hard lid 42 in order to avoid the diaphragm 13 of venturi slot 11 is touched, because it can interfere pressure measurement.The liquid of venturi slot 11In loading state come-at-able front and suction port 12 hydraulic communication of the body area 10 in box 50.Here, hoop hand or handle 34It is particularly intended for singlehanded installation.Optionally additional pump installation 60 is also shown herein, is designed in the example shown compactedDynamic pump, but for example it is also possible to other pump installations such as diaphragm pump.The flexible fluid passage portion in box 50 is especially referred to,Squish flow pumping action can be obtained by the roller in (being not shown here) equipment whereby.Additional pump installation and the liquid, which are sucked out, isSystem, i.e. especially with 10 hydraulic communication of fluid zone.As another subscheme of the invention, it can use additional pump installation 60 and executeLiquid (or it is also possible to air) is delivered to waste port from fluid zone.It can be for example connected with for holding in its waste portReceive the bag of sucking liquid, which can then be disposed of.Using the program, the liquid level in fluid zone 10 can reduce, it is bestAt least approximate it can empty entire fluid zone 10.This can occur according to the present invention during operation, in of short duration operation intervalIt is interim or during operation between it is outer.Additional pump installation 60 can also be used as standby when cleaning venturi system of the invention is out of orderUse option.According to the present invention it is also possible to realize the mashed up use of cleaning venturi system and additional pump installation 60, especially haveSmooth or mutation transition part, or as permanent mashed up application form.Additional pump installation 60 is also used as additional suctionPressure or suction volume promote to increase device out, increase for example to cause to be sucked out to convey in occlusion.Also it can use additional pump installation60 temporarily feed back liquid for eliminating occlusion.Being emptied completely fluid zone 10 for example can also so be found, in suction systemNegative pressure (such as being found via pressure measurement mechanism 40) quickly increase.In order to guarantee soft pressure rise so as to patient againStarting is sucked out, and temporary feed back for emptying mechanism can be used to the negative pressure that abatement increases.
Fig. 6 b shown from other sides more than embodiment.The components drawn are described before.It is additionalValve 65a or 65b in sucking liquid path are shown, can change whereby, especially close and open flow cross.It borrowsThis, can connect or adjust and be sucked into fluid zone.Connection relevant to additional pump installation 60 or switching can also be executed with this.Bubble monitor 68 is also shown, is designed in box 50 estimate the air in discovery suction system with form herein.
Fig. 7 is shown as the embodiment of the venturi slot 11 of the invention of the core members of replacement plug-in unit 1 of the invention.HereinIt can be seen that illustrative pressure sensor cover piece 42 for example may be used whereby as providing the embodiment of pressure measurement mechanismTo be increased by adding pump installation 60 according to the measurement negative pressure value in fluid zone 10 come when determining that fluid zone 10 is emptied completely, and/Or the fluid zone that can reduce to determine functional fault or be full of according to the negative pressure value in fluid zone 10 whereby.
Fig. 8 a is shown in section view the venturi slot 11 of the invention of the core members as replacement plug-in unit 1 of the invention nowEmbodiment example of the present invention.The appearance when fluid zone 10 is empty in membranaceous thin membrane 13 is also shown herein nowState.Switch symbols 31 represent the equipment side level monitoring of fluid zone 10, this can for example pass through the switch member by 13 actuation of diaphragmPart carries out.
Fig. 8 b shows details 66 again.Here, the diaphragm on the 13a of position can indicate the first manufacture step in replacement plug-in unitInitial position in rapid.In the manufacturing step then carried out, diaphragm 13 can be then deep-drawn to position 13b from position 13a,Fluid zone 10 is added in negative pressure preferably by port is sucked out via it, optionally also with the heating of diaphragm 13.Especially, hereinThen being retained in diaphragm 13 on the position 13b as resting position, and replace plug-in unit be provided in the form of thisIt is first to use.Alternatively, provide diaphragm 13 with also may be at another location, and first in equipment when it comes into operation exampleIt such as is in following posture 13b by other pump installations 60, but this is not mostly advantageous for example for the used time.
Fig. 8 c shows the details 66 of Fig. 8 a again, but diaphragm 13 is in an intermediate position at this time, such as during suction, at this timeFluid zone 10 and negative pressuren zone 20 all have the volume between its maximum value and minimum value.
Fig. 9 shows the embodiment of such as litter bag of waste canister 33 or waste pocket.The waste port 70 of box can be connected toIts port 34, especially waste port 70 will not with obscuring with another port mechanically and/or optical mode be encoded.RootAccording to a scheme of the invention, liquid can be sent in waste canister 33 from the fluid zone 10 of cleaning venturi slot 10.It is specialIt is not that waste canister 33 can have the special device 35 for being directly hooked on box 50, and box 50 has correspondinglyPendant.
One embodiment of the illustrated Ophthalmologic apparatus 99 of the invention of Figure 10 together with it is according to the present invention, as the present inventionReplacement plug-in unit 1 embodiment ophthalmology box 50 the part for being accommodated in embodiment therein.About box 50 or more insertThe details of part 1, referring to described above.Such as ophthalmology handpiece 91 is connected to it and port 12 is sucked out, and can complete eyes 90 wherebyOperation.In box 50, port 12 is sucked out as described especially for example by valve, pressure sensor, air-foam detector, additionalAt least part in pump installation etc. is connected with the fluid zone of replacement plug-in unit (or box), and basic structure only signifies in this exampleProperty be shown and can be carried out in particular according to Fig. 1 and Fig. 2 and corresponding explanation.By the complementary pump of such as embodimentDevice 60, liquid can also be sent to the litter bag 33 from being directly installed on waste port 70 from fluid zone 10.Negative pressuren zone 20It is opened by diaphragm 13 and 10 airtight partition of fluid zone.Negative pressuren zone 20 is made of box 50 and mating member 21 in this embodiment, andAnd air can be pumped out from negative pressuren zone 20 as shown in figure, for example to be mating member 21 be connected to vacuum pump by port 22 to way28.For the sake of very clear, it is not shown here the details of equipment.